Streamlined execution model simplifies OS/application interface and speeds porting/certification efforts for Avionics Line Replaceable Units
Phoenix, AZ. July 11, 2011. DDC-I, a leading supplier of software and professional services for mission- and safety-critical applications, today announced that its Deos™ safety-critical real-time operating system (RTOS) will support ARINC Specification 653 Part 4 when the final version of the specification is approved. DDC-I also announced that they have a demonstrable version of the product designed to a working draft of the specification for customers to begin prototyping and development with this key emerging specification. ARINC Specification 653 Part 4 is being defined by the AEEC Application/Executive (APEX) Subcommittee, which is co-chaired by representatives from Airbus and Boeing, and includes representation by Dassault, Embraer, GE Aviation, Honeywell, Rockwell Collins, Thales and other industry leaders. AEEC is the Airlines Electronic Engineering Committee, the body responsible for ARINC Standards.
“The airline community funds ARINC 653 development efforts and expects to see benefit from the wide-spread use of real-time operating systems built to the ARINC 653 Part 4 subset,” said Paul Prisaznuk, AEEC Executive Secretary & Program Director.
ARINC Specification 653 defines an Application/Executive Interface between an avionics computer’s operating system and application software that simplifies software design, enhances portability and reuse, and reduces the cost of avionics software certification. ARINC 653 Part 4 provides a strict subset of the services defined by ARINC 653 Part 1, extending the benefits of ARINC 653 to systems that do not require the size, complexity and features of the full specification, such as the majority of the Line Replaceable Units (LRU) on next generation aircraft. ARINC 653 Part 4 utilizes a simplified execution model with a time-and space-partitioned software environment that allows multiple partitions with only one or two processes per partition. The lightweight specification’s goal is to maintain compatibility with ARINC 653 Part 1 while simplifying software design and dynamic behavior, thereby reducing OS footprint, overhead, complexity, with the ability to deliver strong real-time performance.
“DDC-I is pleased to announce our commitment to this key emerging standard, which will allow our customers to reduce certification costs through enhanced portability,” said Bob Morris, president and CEO of DDC-I. “Deos’s support for the Part 4 Subset, coupled with our existing binary partitioning and reuse capabilities, maximizes avionics software portability between programs and devices to speed certification and recertification efforts, giving our customers a best-in-class RTOS solution for next-generation avionics systems.”
Deos is a DO-178B Level A certifiable embedded RTOS that has been used in hundreds of safety critical avionics applications on commercial and military aircraft. The time and space partitioned RTOS features deterministic real-time response and employs patented “slack scheduling” to deliver higher CPU utilization than any other certifiable safety-critical COTS RTOS. Built from the ground up for safety-critical applications, Deos is the only certifiable time and space partitioned COTS RTOS that has been created using RTCA DO-178B, Level A processes from the very first day of its product development. It also provides the easiest, lowest cost path of any COTS RTOS to DO-178B Level A certification, the highest level of safety criticality.
About DDC-I, Inc.
DDC-I, Inc. is a global supplier of real-time operating systems, software development tools, custom software development services, and legacy software system modernization solutions, with a primary focus on mission- and safety-critical applications. DDC-I’s customer base is an impressive “who’s who” in the commercial, military, aerospace, and safety-critical industries. DDC-I offers safety-critical real-time operating systems, compilers, integrated development environments and run-time systems for C, C++, Ada, Fortran and JOVIAL application development. For more information regarding DDC-I products, contact DDC-I at at 4600 E. Shea Blvd, Phoenix, AZ 85028; phone (602) 275-7172; fax (602) 252-6054; e-mail email@example.com or visit https://www.ddci.com/mktg.php?mc=pr1107.